CN204555911U - A kind of experiment detection device for the warm and humid deformation of tunnel cement concrete - Google Patents
A kind of experiment detection device for the warm and humid deformation of tunnel cement concrete Download PDFInfo
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- CN204555911U CN204555911U CN201520281097.8U CN201520281097U CN204555911U CN 204555911 U CN204555911 U CN 204555911U CN 201520281097 U CN201520281097 U CN 201520281097U CN 204555911 U CN204555911 U CN 204555911U
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Abstract
The utility model relates to the warm and humid deformation research field of cement concrete, discloses a kind of experiment detection device for the warm and humid deformation of tunnel cement concrete.This pick-up unit comprises the cement concrete test specimen of annular, described cement concrete test specimen is provided with radial opening, the left and right sides correspondence of described opening is provided with left end sheet and right-hand member sheet, and the right side of described opening is fixed with clock gauge, and the gauge head of described clock gauge is against described left end sheet.This pick-up unit both can monitor that tunnel concrete is shaping, warm and humid deformation in hardening process, also can monitor the warm and humid deformation that tunnel concrete stands in warm and humid cyclic process; This apparatus structure is simple, flexible operation, convenience.
Description
Technical field
The utility model relates to the warm and humid deformation research field of cement concrete, particularly a kind of experiment detection device for the warm and humid deformation of tunnel cement concrete.
Background technology
Cement concrete has been widely used in the engineering fields such as civil construction, highway and railway construction, water conservancy, underground, harbour.In recent years, along with country is increasing to infrastructure construction investment, cement concrete demand rises year by year.According to statistics, nearly ten years, China's cement output every year about more than 20.0 hundred million tons, concrete output every year more than 100.0 hundred million tons, comprising numerous Important Project mass concrete and tunnel concrete.
Because tunnel cavern is in semiclosed environment, tunnel concrete is shaping with hardening process, and on the same transversal section of cavern's inwall, Surface layer's concrete humidity is significantly less than cavern's internal layer, and inside and outside dry wet difference causes concrete to produce humidity modification; In addition, along with seasonal variations, in use, massif rock stratum or the soil body often have water to infilter tunnel concrete to tunnel concrete, and inside and outside dry wet difference also causes humidity modification, and experiences humidity modification circulation thus.
, inwall same transversal section in cavern's there is thermograde in the impacts such as climate environment, traffick tail gas, tunnel structure and ventilation condition, produces temperature stress and temperature stress circulation.Meanwhile, cement concrete itself also has performance of expanding with heat and contract with cold, and shrinkage produces stretcher strain, easily causes cracking.By humidity modification, temperature stress and concrete intrinsic expand with heat and contract with cold, expand with wet and contract with dry characteristic etc. affects, the outdoor layer of Tunnel is caused to produce tension stress, when suffered tension is once exceed concrete ultimate strength at that time, will cracking be caused, potential harm is caused to tunnel structure.
Behind generation crack, tunnel cavern, have a strong impact on structural strength and the tenure of use in tunnel, even caused tunnel to occur infiltration phenomenon of leaking, to resistance to overturning and the security performance generation extreme influence in tunnel.The ubiquity of tunnel cement concrete temperature and humidity modification constrains development and the application of tunnel concrete greatly, brings the hidden danger being difficult to estimate also to the permanance in tunnel.At present, rational Test model synthetic techniques is lacked for the warm and humid deformation of tunnel concrete, based on this, design the experiment detection device of the warm and humid deformation of a set of tunnel cement concrete, be convenient to the various factors of the warm and humid deformation of analyzing influence concrete, propose scientific and rational warm and humid deformation evaluation method, have important practical significance for improving tunnel concrete Material composition design and improving tunnel cement concrete permanance.
Utility model content
The purpose of this utility model is to provide a kind of experiment detection device for the warm and humid deformation of tunnel cement concrete, this pick-up unit both can monitor that tunnel concrete is shaping, warm and humid deformation in hardening process, also can monitor the warm and humid deformation that tunnel concrete stands in warm and humid cyclic process; This apparatus structure is simple, flexible operation, convenience.
For reaching above-mentioned technical purpose, the utility model adopts following technical scheme to be achieved.
A kind of experiment detection device for the warm and humid deformation of tunnel cement concrete, it is characterized in that, comprise the cement concrete test specimen of annular, described cement concrete test specimen is provided with radial opening, the left and right sides correspondence of described opening is provided with left end sheet and right-hand member sheet, the right side of described opening is fixed with clock gauge, and the gauge head of described clock gauge is against described left end sheet.
Feature and further improvement of the technical program are:
Described clock gauge is fixed on test specimen by right-hand member sheet.
Described clock gauge is electronic dial gauge, and described clock gauge is connected with data collecting instrument by data line.
Experiment detection device for the warm and humid deformation of tunnel cement concrete of the present utility model, detected the deflection of the cement concrete test specimen of annular by clock gauge, clock gauge precision is high, easy to use; This pick-up unit both can monitor that tunnel concrete is shaping, warm and humid deformation in hardening process, also can monitor the warm and humid deformation that tunnel concrete stands in warm and humid cyclic process; This apparatus structure is simple, flexible operation, convenience.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the structural representation of a kind of experiment detection device for the warm and humid deformation of tunnel cement concrete of the present utility model;
In figure: 1, cement concrete test specimen; 2, clock gauge; 3, data line; 4, left end sheet; 5, right-hand member sheet; 6, opening.
Embodiment
With reference to Fig. 1, it is the structural representation of a kind of experiment detection device for the warm and humid deformation of tunnel cement concrete of the present utility model; This pick-up unit comprises the cement concrete test specimen 1 of annular, cement concrete test specimen 1 is that the sprayed concrete of C2O or C25 or C30 is built and formed, cement concrete test specimen 1 is provided with radial opening 6, and cement concrete test specimen 1 external radius 20cm, inside radius 15cm, high 5cm, opening are wide is 3mm; The left and right sides correspondence of opening 6 is provided with left end sheet 4 and right-hand member sheet 5, left end sheet 4 and right-hand member sheet 5 are implanted in cement concrete specimen molding process, left end sheet 4 is substantially identical with the structure of right-hand member sheet 5, long 10cm, wide 4cm, thick 3mm, left end sheet 4 and right-hand member sheet 5 are 5mm apart from the distance of left openend and right openend; The right side of opening 6 is fixed with clock gauge 2, the gauge head of clock gauge 2 is against left end sheet 4, ensure during installation that the gauge head of clock gauge 2 and left end sheet 4 remain abutment condition, cement concrete test specimen 1 drives left end sheet 4 to move when there is deformation, gauge head is followed left end sheet 4 and is moved, thus measures the deformation quantity of cement concrete test specimen 1.
Wherein, clock gauge 2 is fixed on test specimen by right-hand member sheet 5.
Wherein, clock gauge 2 is electronic dial gauge, and precision is 0.01mm; Clock gauge 2 is connected with data collecting instrument by data line 3, and data collecting instrument has the functions such as data storage, random display, instant printing, guarantees the reliability of thermomechanical processing.
The use of this pick-up unit:
1, standard curing box can be placed in the hardening process of cement concrete test specimen 1, the deformation quantity in its hardening process of data collecting instrument record.
2, cement concrete test specimen 1 can be placed in dry environment case after hardening, along with temperature variation, and the stretch-draw deformation of real-time monitored concrete, its stretch-draw deformation quantity of data collecting instrument record.
3, cement concrete test specimen 1 can be placed in the environmental cabinet of drying and watering cycle after hardening, along with the change of temperature and humidity, and the stretch-draw deformation of real-time monitored concrete, its stretch-draw deformation quantity of data collecting instrument record.
Experiment detection device for the warm and humid deformation of tunnel cement concrete of the present utility model, detected the deflection of the cement concrete test specimen 1 of annular by clock gauge 2, clock gauge 2 precision is high, easy to use; This pick-up unit both can monitor that tunnel concrete is shaping, warm and humid deformation in hardening process, also can monitor the warm and humid deformation that tunnel concrete stands in warm and humid cyclic process; This apparatus structure is simple, flexible operation, convenience.
Although be below described embodiment of the present utility model by reference to the accompanying drawings, but the utility model is not limited to above-mentioned specific embodiments and applications field, above-mentioned specific embodiments is only schematic, guiding, instead of restrictive.Those of ordinary skill in the art is under the enlightenment of instructions, and when not departing from the scope that the utility model claim is protected, can also make a variety of forms, these all belong to the row of the utility model protection.
Claims (3)
1. the experiment detection device for the warm and humid deformation of tunnel cement concrete, it is characterized in that, comprise the cement concrete test specimen of annular, described cement concrete test specimen is provided with radial opening, the left and right sides correspondence of described opening is provided with left end sheet and right-hand member sheet, the right side of described opening is fixed with clock gauge, and the gauge head of described clock gauge is against described left end sheet.
2. a kind of experiment detection device for the warm and humid deformation of tunnel cement concrete according to claim 1, it is characterized in that, described clock gauge is fixed on test specimen by right-hand member sheet.
3. a kind of experiment detection device for the warm and humid deformation of tunnel cement concrete according to claim 1, is characterized in that, described clock gauge is electronic dial gauge, and described clock gauge is connected with data collecting instrument by data line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520281097.8U CN204555911U (en) | 2015-05-04 | 2015-05-04 | A kind of experiment detection device for the warm and humid deformation of tunnel cement concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520281097.8U CN204555911U (en) | 2015-05-04 | 2015-05-04 | A kind of experiment detection device for the warm and humid deformation of tunnel cement concrete |
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| Publication Number | Publication Date |
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| CN204555911U true CN204555911U (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520281097.8U Expired - Fee Related CN204555911U (en) | 2015-05-04 | 2015-05-04 | A kind of experiment detection device for the warm and humid deformation of tunnel cement concrete |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403141A (en) * | 2015-11-27 | 2016-03-16 | 中国科学院武汉岩土力学研究所 | Circumferential strain gauge for inner wall of circular hole |
| CN108775855A (en) * | 2018-07-16 | 2018-11-09 | 哈尔滨工业大学 | The measuring device of through-hole hoop strain during a kind of static crushing |
| CN108955556A (en) * | 2018-08-24 | 2018-12-07 | 云南航天工程物探检测股份有限公司 | Laser-projection-type antiglare shield resistance to deformation amount detecting device and method |
-
2015
- 2015-05-04 CN CN201520281097.8U patent/CN204555911U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403141A (en) * | 2015-11-27 | 2016-03-16 | 中国科学院武汉岩土力学研究所 | Circumferential strain gauge for inner wall of circular hole |
| CN108775855A (en) * | 2018-07-16 | 2018-11-09 | 哈尔滨工业大学 | The measuring device of through-hole hoop strain during a kind of static crushing |
| CN108955556A (en) * | 2018-08-24 | 2018-12-07 | 云南航天工程物探检测股份有限公司 | Laser-projection-type antiglare shield resistance to deformation amount detecting device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20160504 |
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| CF01 | Termination of patent right due to non-payment of annual fee |